Longitudinally-movable locking and interlocking bolt.



IN V EN TOR.

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Patented Dec. 2%, 1918.

i? *1 BY I! bag ATTORNEYS.

G. C. IENSEN.

LONGITUDLNALLY MOVABLE LOCKING AND INTERLOCKING BOLT.

APPLICATION FILED AUG.8.1918.

W UTNESS:

GEORGE C. JENSEN, 0F OAKLAND, CALIFORNIA.

LONGITUDINALLY-MOVABLE Specification of Letters Patent.

LOCKING AND INTERLOCKING BOLT.

Patented Dec. 24, 1918.

Application filed August 8, 1918. Serial No. 248,865.

To all whom z't may concern:

' Be it known'that I, GEORGE C. JENSEN, citizen of the United States,residing at Oakland, in the county of Alameda and State of California,have invented certain new and useful Improvements inLongitudinally-Movable Locln'ng and Interlockmg Bolts, of which thefollowing'is a specification.

This invention relates to a locking construction for shifter devices,also to .an interlock for shifter devices and to a means for lockingcovers on transmission cases, it being a modified construction of thatillustrated in my co-pending application executed on the 5th day ofJuly, 1918.

The principal objects of this invention are to provide a longitudinallymovable locking bolt adapted when moved into one position to lock theshifter devices from operative movement and to lock the cover to thetransmission case and when in another position to provide an interlockfor the shifter devices whereby the same are retained in their setposition.

With the above mentioned and other objects in view, the inventionconsists in the novel construction and combination ofparts hereinafterdescribed illustrated in the accompanying drawings, and set forth in theclaims hereto appended, it being understood that various changes in theform, proportion, size and minor details of construction within thescope of the claims may be resorted to without departing from the spiritor sacrificing any of the advantages of the invention.

Figure 1 is a view in broken side elevation of the preferred embodimentof my inven- 4 tion.

Fig. 2 is a broken vertical sectional. view of the same illustrating thelocking bolt.

In the drawings 1 indicates a suitable transmission case provided in oneend wall with a depression 2 having an overhanging flange 3, and in thistransmission case are adapted for positioning power transmitting gearsof any well-known type, not shown.

The upper edge of the case with an annular upstanding flange 1, and onthe said case within said flange is adapted to rest the supporting edge5 of a case cover or closure 6. The flange 4 preventing the insertion ofan instrument between the meeting edges of the cover and case for pryingthe same apart.

1 is provided Longitudinally movable within alined bores at oppositeends of the cover 6 are the parallel spaced shifter devices 7,illustrated in the form of rods, said devices being provided adjacentone end and opposite each other with stops 8. The devices 7 are eachprovided adjacent their opposite ends with a verticalbore 9 adapted toregister with a similar bore 10, formed within the end wall of the cover6 and intersecting the path of movement of the shifter devices, saidbores 10 adapted for receiving a headed retaining screw 11 passedthrough the bores 9 which unite or attach one end of the cover member tothe case. The bores 9 are so disposed that the same are out of alinementwith the bores 10 when the stops 8 are disposed opposite each other,thereby precluding the removal of the retaining screws 11 in theirengaged position.

The cover 6 is formed with a vertically extended bore 12 therein withinwhich is mounted for longitudinal movement the lockingbolt 13 whichextends between the shifter devices 7 at a point between the stops 8when the same lie opposite each other. The lower end of the bolt 13 isbeveled as at 14: and is received in a guide 15 immediately below thebore-12, the guide having a recess 16 therein, the lower wall surface 17of which is upwardly inclined and registers with the lower inclined wallsurface 18 of the recess 2 when the cover is'positioned on the case.'--,A locking ball 19 is positioned within the recess 16 and is adaptedon the depression of the bolt 13 to be forced upwardly over saidinclined surface 17 thereof and to be partially received within therecess 2 thereby locking one end of the cover from removal from thecase 1. The retracting of the bolt 13 permits the dropping by gravity ofthe ball 19 into the recess 16.

The locking bolt 13 carries an elongated looking member 20, projectingsuiliciently beyond the bolt as to be received within the stops 8 on thelongitudinal movement of the bolt in one direction thereby locking theshifter devices from operative movement.

An interlocking pin or device 21 is disposed in a plane parallel withthe member 20 immediately below the same and is freely movable within anopening 22 within the bolt, said pin being adapted on the release orretraction of the locking bolt to lie opposite said stops 8 and on themovement of one of said shifter devices to have its opposite endreceived in the stop of the opposite shifter device thereby precludingmovement of said shifter devices until such time as both devices are ina position where said stops are opposite each other.

Any suitable locking means may be employed for locking the bolt 13 atthe llmit of its reciprocation in one direction when in engagement withsaid stops, that illustrated including a spring pressed latch 23,operating in a lateral bore 24 formed in the upper enlarged head or end25 of the bolt 13 the same being received at its outer end on thedepression of the bolt in a notch 26 formed in the wall of the recess12. The latch is adapted to be retracted on the operation' ofthe lockingbarrel 27, preferably of the key-controlled type, mounted within thelock casing 28 seated within the upper end of the bolt, the barrel beingprovided with a cam 29 which extends into a recess 30 in the uppersurface of the latch. On the retraction of the latch 23 the bolt 13 isautomatically restored to its retracted or unlocked position by a spring31 coiled about the upper end of the same within the bore 12. Ifdesirable an ignition contact 32 may be carried by the cover 6 and thecontact pin 23 thereof is adapted to complete the circuit through thebolt 13 during such time as the shifter devices are in operative orunlocked position, said pin adapted when the bolt is in its lockedposition to rest on an insulated portion 34 carried by the bolt.

In this construction I have provided a longitudinal movable locking boltwhich is capable of positioning to lock the shifter devices fromoperative movement and the cover on the case or to permit operativemovement of said shifter devices one at a time.

Having thus described my invention what I claim as new and desire to beprotected by Letters Patent is:

1. In combination with a pair of parallel spaced shifter devices, alongitudinally. movable locking bolt extended between the same, meanscarried by the bolt and adapted on the reciprocation thereof forextending into path of movement of the shifter devices to lock the fromoperation, and means carried by the locking bolt and adapted on thereciprocation of the same to release said shifter devices to provide aninterlock between said shifter devices and preclude the movement of oneduring such time as the other is moved from neutral position.

2. In combination with a pair of parallel spaced shifter devices, a casehaving a removable cover inclosing the same, a longitudinal movablelocking bolt extended between said devices and capable of operation toprevent operative movement of said devices, said cover and case eachprovided with a chamber adapted to register when the cover is positionedon the case, and means within one of said chambers and thrown intooperation on the movement of said bolt to lock said shifter devices frommovement for overlapping the meeting edges 'of said cover and casechambers to prevent removal of the cover from the case.

3. In combination with a pair of parallel spaced shifter devices, a casehaving a-removable cover inclosing the same, a longitudinal movablelocking bolt extended between said devices and capable of operation toprevent operative movement of said shifter devices, said cover and caseeach provided with a receiving chamber adapted for registering on thepositioning of the cover on the case, the bottom wall of said chamberbeing inclined downwardly toward the rear wall of said cover, aninterlocking ball normally received in the cover chamber and adapted tobe engaged by said bolt when in its shifter device locking position andprojected into said case chamber on the depression of said locking bolt.

4. In combination with a pair of parallel spaced longitudinally movableshifter devices, a longitudinally movable locking bolt -extended betweenthe same, means carried by said bolt and adapted on the longitudinalmovement of the same in one direction to lock the same from operativemovement, means carried by the bolt and adapted on the operation of thesame in a reverse direction to provide an interlock between said shifterdevices, and means for locking said bolt in one of said positions.

5. In combination with a pair of parallel spaced longitudinally movableshifter devices, a locking bolt extended between the same and capable oflongitudinal movement, means associated with said bolt at differenthorizontal planes within the length thereof for cooperating with theshifter devices on the movement of said bolt, one of said means beingrigid on the bolt and adapted for engaging said shifter devices to lockthe same from movement, and the other of said means capable oflongitudinal movement transversely of the bolt, and adapted forengagement with the shifter devices to provide an interlock between thesame;

6. In combination with a pair of parallel spaced longitudinally movableshifter devices, a case having a removable cover within which saiddevices operate, a locking bolt extended between said devices andprovided with a beveled lower end, a cover locking ball receivingchamber formed in the cover and into which the lower end of said lockingbolt extends, a chamber within the case and adapted to register withsaid cover chamber on the positioning of the cover on the case, meanscarried by the bolt for engaging said shifter devices to lock thesamefrom movement on the movement of the bolt in one direction, means forproviding an interlock between said devices on the movement of the boltin the opposite direction, said bolt when said shifter devices are inlocked position displacing said ball from said chamber whereby saidcover and case are locked from separation.

7. In combination with a longitudinally movable shifter device providedwith an opening extended therethrough, a cover and case Within whichsaid device operates, means passing through said opening for uniting thecover to the case, a locking bolt capable of positioning to lock saidshifter device from operative movement with the opening in said shifterdevice out of register with said cover securing means, and an additionaleover locking means thrown into operation by said bolt on the movementthereof to lock said shifter devices, said last 20 name to thisspecification in the presence of 25 a subscribing witness.

GEORGE O. JENSEN.

Witness:

D. B. RICHARDS.

